Document Detail


Human coronary atherosclerosis modulates cardiac natriuretic peptide release.
MedLine Citation:
PMID:  19237156     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Natriuretic peptides (NPs) modulate vasodilatation and vascular remodelling. In human coronary explants, expression of NPs mRNA and their respective receptors is significantly more pronounced with advanced atherosclerotic lesions. AIMS: We hypothesize that vascular atherosclerosis modulates NP release in vivo during progressive stages of coronary atherosclerosis. METHODS AND RESULTS: NT-proANP (A) and NT-proBNP (B) were assessed on blood samples of 194 patients. Coronary atherosclerosis was assessed in all patients by angiography and in case of moderate stenosis by fractional flow reserve (FFR), a validated tool for detecting ischemia-inducing stenosis. Significant coronary stenosis was defined as a diameter stenosis (DS) >/=50% and/or positive FFR. Endothelial dysfunction was detected by cold pressure test (CPT) in a subgroup of 99 patients. Patients were divided into: (1) normal group (normal endothelial function, n=19); (2) endothelial dysfunction group (n=17); (3) moderate atherosclerotic group (at least one coronary stenosis <50%, n=86); (4) stenotic group (n=72). A and B were higher in patients with endothelial dysfunction (A: 2951 [1290-3920] fmol/ml; B: 156 [98-170] pg/ml), moderate atherosclerotic (A: 3868 [2250-5890] fmol/ml, p<0.05 vs. normal; B: 162 [84-283] pg/ml) and stenotic group (A: 3934 [2647-5525]; B: 227 [191-784] pg/ml; p<0.05 vs. normal) as compared with normal group (A: 2378 [970-2601] fmol/ml; B: 78 [40-136] pg/ml). During CPT, a mild NT-proANP increase was observed only in patients with endothelial dysfunction (Delta% vs. baseline: 17+/-6, p<0.05). NT-proBNP did not change after CPT in all groups. CONCLUSION: Well defined stages of atherosclerosis are characterized by progressive increases in NT-proANP and NT-proBNP levels, beginning with endothelial dysfunction and progressively more pronounced with moderate and severe coronary atherosclerosis irrespective of the underlying myocardial disease.
Authors:
Emanuele Barbato; Speranza Rubattu; Jozef Bartunek; Andrea Berni; Giovanna Sarno; Marc Vanderheyden; Leen Delrue; Domenico Zardi; Biagio Pace; Bernard De Bruyne; William Wijns; Massimo Volpe
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Publication Detail:
Type:  Journal Article     Date:  2009-02-03
Journal Detail:
Title:  Atherosclerosis     Volume:  206     ISSN:  1879-1484     ISO Abbreviation:  Atherosclerosis     Publication Date:  2009 Sep 
Date Detail:
Created Date:  2009-08-31     Completed Date:  2009-12-02     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0242543     Medline TA:  Atherosclerosis     Country:  Ireland    
Other Details:
Languages:  eng     Pagination:  258-64     Citation Subset:  IM    
Affiliation:
Cardiovascular Center OLV Aalst, Moorselbaan n. 164, Aalst, Belgium. emanuele.barbato@olvz-aalst.be
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MeSH Terms
Descriptor/Qualifier:
Atrial Natriuretic Factor / secretion*
Cold Temperature
Coronary Angiography
Coronary Artery Disease / blood,  physiopathology*
Coronary Stenosis / blood,  physiopathology*
Echocardiography
Female
Humans
Male
Middle Aged
Natriuretic Peptide, Brain / secretion*
Peptide Fragments / secretion*
Severity of Illness Index
Chemical
Reg. No./Substance:
0/Peptide Fragments; 0/pro-brain natriuretic peptide (1-76); 114471-18-0/Natriuretic Peptide, Brain; 85637-73-6/Atrial Natriuretic Factor

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